His tweets have the power to shape international relations, send stock prices up — or down — and galvanize the American public.

We're watching how Donald Trump is using this platform of unfettered communication now that he’s commander in chief. Here is everything Trump has tweeted since he was sworn in as 45th president of the United States. In many cases, we look at what he was reacting to and whether what he said was accurate. And, as much as possible, we'll relate what else was going on at the time. Check back for more as Trump continues to tweet.

Hoping to turn the page on a tumultuous opening chapter to his presidency, President Trump insisted that there was "no chaos" in his White House on Monday as he swore in retired Marine Gen. John F. Kelly as his second chief of staff.